Geographical environment of Shangyu District

The basic outline of the whole territory is a rectangle from north to south, the longest from north to south is 60 kilometers, and the widest from east to west is 46 kilometers, with an area of 1.406 square kilometers, of which the mouth of Qiantang River is 2 1.2 square kilometers. Shangyu is high in the south and low in the north, and the area of low hills in the south and plain of water network in the north is half, commonly known as "five mountains, one water and four fields". The low hills in the south belong to two branches, and the rest of Siming Mountain in the southeast is steep, covering 86 1.3 meters above sea level, which is the highest point in the city. Southwest is a remnant vein of Huiji Mountain, which is slightly gentle. The highest point of Luocun Mountain is 390.7 meters above sea level. The northern water network plain belongs to the category of Ningshao plain, with low terrain and an average elevation of about 5 meters. The northernmost part is the coastal plain, with an average elevation of about 10 meter.

Cao 'e River is the fourth largest river in Zhejiang Province, which runs through the whole territory from south to north. Its main tributaries are Xiaoshunjiang River, Xiaguanxi River and Yintan River. The main artificial rivers are Xiaocao Canal, Yuyong Canal, Shili River, Shili River, Baili River and Tu Hai Central River. The average inflow for many years is about 2.795 billion cubic meters, which is 3.33 times of the total water resources in the county. The main lakes are Xiaoyue Lake, Pogang Lake, Baima Lake, Chanba Lake, Zaoli Lake, Xixi Lake, Qi Xie Lake, Kangjia Lake and Hejiachi (part of the water surface belongs to Shaoxing County). Shangyu District of Shaoxing City is located in the southern edge of the north subtropical zone and belongs to the East Asian monsoon climate. The monsoon is obvious, the climate is mild, the four seasons are distinct, and it is rainy and humid. Due to the complex terrain, there are obvious regional differences in illumination, temperature and moisture, and there are many disastrous weather. The general trend is that there are more floods than droughts. The annual average temperature is 16.4℃, the frost-free period is about 25 1 day, and the annual average rainfall is about 1400 mm.